Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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 Posted: May 08, 2022 15:47 Post subject: Help with the locality. |
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Hello.
At the Genoa Mineral Show two weeks ago I purchased this Fluorite with Calcite from Illinois.
I love floaters and this specimen, although not exceptional, is a complete floater.
Unfortunately, the only indication on the locality was "Illinois".
The habit of Calcite would suggest Annabel Lee or Denton or Minerva No.1, but a trace of Malachite excludes Denton.
What do the friends of the Forum think?
Thank you very much.
Sante
| Mineral: | Fluorite, Calcite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA |  |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
| The color of Fluorite varies from yellow to pale green/purplish. It is included by sub-millimeter Chalcopyrite. The biggest crystal is 57 mm. |
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| Viewed: |
2623 Time(s) |
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| Mineral: | Fluorite, Calcite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA | |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
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| Viewed: |
2623 Time(s) |
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| Mineral: | Fluorite, Calcite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA | |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
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| Viewed: |
2618 Time(s) |
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| Mineral: | Fluorite, Calcite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA | |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
| Calcite fluoresces, while Fluorite doesn't. |
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| Viewed: |
2627 Time(s) |
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| Mineral: | Fluorite, Calcite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA | |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
| Inclusions of Chalcopyrite and traces of Malachite. |
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| Viewed: |
2618 Time(s) |
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| Mineral: | Calcite, Fluorite, Chalcopyrite, Malachite |
| Locality: | | Illinois, USA | |
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| Dimensions: | 10,7 x 7 cm |
| Description: |
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| Viewed: |
2625 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4102
Location: Germany
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| Posted: May 09, 2022 02:09 Post subject: Re: Help with the locality. |
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| Sante Celiberti wrote: | Hello.
At the Genoa Mineral Show two weeks ago I purchased this Fluorite with Calcite from Illinois.
I love floaters and this specimen, although not exceptional, is a complete floater.
Unfortunately, the only indication on the locality was "Illinois".
The habit of Calcite would suggest Annabel Lee or Denton or Minerva n°1, but a trace of Malachite excludes Denton.
What do the friends of the Forum think? |
I think that's a tough one ;-) Maybe from Annabel Lee? Malachite occured there in some tiny amounts like the one on your specimen. And some of the lesser-known mines from Cave-In-Rock also produced malachite but I'm not sure if they also produced such well fluorite and calcite :-/
I hope someone will know, best regards
Tobi
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